9A Unit2单词知识点讲义1. rainbow 彩虹 indigo 靛蓝 violet 紫罗兰色Our teacher told us there are seven colours in a rainbow.2. mood mu:din a bad/good mood 心情好/不好He is in a bad mood today.他今天心情不好。affect our moodsColours can affect our moods.3. influence nfluns (use power to make sb agree with sth/make sb change) v. 影响 His father has influenced his life.Colours can influence our moods.颜色能够影响我们的心情。n. 影响,have an influence on sb 对-有影响This film ha